Program Calendar

The Illinois Solar for All program calendar includes important dates, key milestones, and deadlines for Approved Vendors submitting projects across all sub-programs. The current calendar outlines dates for the 2026-2027 Program Year.

Residential Solar (Small)
Residential Solar (Large)
Community Solar
Non-Profit and Public Facilities

Key:

Project submission windows
Dates only necessary if triggered by project selection

Residential Solar (Small)

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

Residential Solar (Large)

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

Community Solar

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

Non-Profit and Public Facilities

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

All program submission windows open at 9 a.m. and close at 5 p.m. CT.

Key:

Project submission windows
Dates only necessary if triggered by project selection